Type correction and opcode implementations
This commit is contained in:
parent
c6e4ecec3d
commit
b053461e74
5 changed files with 307 additions and 148 deletions
242
src/bytecode.rs
242
src/bytecode.rs
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@ -25,12 +25,16 @@ impl Bytecode {
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0x0E => (Instruction::PushConstDouble0(), 1),
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0x0F => (Instruction::PushConstDouble1(), 1),
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0x10 => (Instruction::LoadByteImmediate(self.bytes[offset+1]), 2),
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0x11 => (Instruction::LoadShortImmediate((self.bytes[offset+1] as u16) << 8 | self.bytes[offset+2] as u16), 3),
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0x10 => (Instruction::LoadByteImmediate(i8::from_be_bytes([self.bytes[offset+1]])), 2),
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0x11 => {
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let bytes = [self.bytes[offset+1], self.bytes[offset+2]];
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(Instruction::LoadShortImmediate(i16::from_be_bytes(bytes)), 3)
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}
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0x12 => (Instruction::LoadConstant(self.bytes[offset+1]), 2),
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0x13 => (Instruction::LoadCostantWide((self.bytes[offset+1] as u16) << 8 | self.bytes[offset+2] as u16), 3),
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0x14 => (Instruction::LoadConstant64((self.bytes[offset+1] as u16) << 8 | self.bytes[offset+2] as u16), 3),
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0x19 => (Instruction::LoadLocalReference(self.bytes[offset+1]), 2),
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0x1A => (Instruction::LoadLocalInt0(), 1),
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0x1B => (Instruction::LoadLocalInt1(), 1),
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0x1C => (Instruction::LoadLocalInt2(), 1),
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@ -51,17 +55,19 @@ impl Bytecode {
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0x32 => (Instruction::ArrayElement(), 1),
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0x33 => (Instruction::LoadFromBArray(), 1),
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0x36 => (Instruction::StoreLocalInt(self.bytes[offset+1]), 2),
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0x3A => (Instruction::StoreLocalReference(self.bytes[offset+1]), 2),
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0x3B => (Instruction::StoreLocalInt0(), 1),
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0x3C => (Instruction::StoreLocalInt1(), 1),
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0x3D => (Instruction::StoreLocalInt2(), 1),
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0x3E => (Instruction::StoreLocalInt3(), 1),
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0x4B => (Instruction::StoreReference0(), 1),
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0x4C => (Instruction::StoreReference1(), 1),
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0x4D => (Instruction::StoreReference2(), 1),
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0x4E => (Instruction::StoreReference3(), 1),
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0x4B => (Instruction::StoreLocalReference0(), 1),
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0x4C => (Instruction::StoreLocalReference1(), 1),
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0x4D => (Instruction::StoreLocalReference2(), 1),
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0x4E => (Instruction::StoreLocalReference3(), 1),
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0x53 => (Instruction::StoreIntoRArray(), 1),
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0x54 => (Instruction::StoreIntoBArray(), 1),
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0x55 => (Instruction::StoreIntoCArray(), 1),
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0x57 => (Instruction::Pop(), 1),
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0x59 => (Instruction::Duplicate(), 1),
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@ -72,7 +78,8 @@ impl Bytecode {
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0x6C => (Instruction::DivideInt(), 1),
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0x6D => (Instruction::DivideLong(), 1),
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0x7A => (Instruction::ShiftIntRight(), 1),
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0x7A => (Instruction::ArithmeticShiftIntRight(), 1),
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0x7C => (Instruction::LogicalShiftIntRight(), 1),
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0x80 => (Instruction::OrInt(), 1),
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0x84 => (Instruction::IncrementLocalInt(self.bytes[offset+1], i8::from_be_bytes([self.bytes[offset+2]])), 3),
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@ -136,13 +143,31 @@ impl Bytecode {
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let bytes = [self.bytes[offset+1], self.bytes[offset+2]];
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(Instruction::BranchReferenceInequality(i16::from_be_bytes(bytes)), 3)
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}
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0xAC => (Instruction::ReturnInt(), 1),
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0xA7 => {
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let bytes = [self.bytes[offset+1], self.bytes[offset+2]];
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(Instruction::BranchAlways(i16::from_be_bytes(bytes)), 3)
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}
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0xAB => {
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let padding = 4 - (offset % 4) - 1;
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let default_bytes = [self.bytes[offset+padding+1], self.bytes[offset+padding+2], self.bytes[offset+padding+3], self.bytes[offset+padding+4]];
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let default = i32::from_be_bytes(default_bytes);
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let npairs_bytes = [self.bytes[offset+padding+5], self.bytes[offset+padding+6], self.bytes[offset+padding+7], self.bytes[offset+padding+8]];
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let npairs = i32::from_be_bytes(npairs_bytes);
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let mut pairs_vec = Vec::with_capacity(npairs as usize);
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for i in 0..npairs as usize {
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let match_bytes = [self.bytes[offset+padding+8*(1+i)+1], self.bytes[offset+padding+8*(1+i)+2], self.bytes[offset+padding+8*(1+i)+3], self.bytes[offset+padding+8*(1+i)+4]];
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let offset_bytes = [self.bytes[offset+padding+8*(1+i)+5], self.bytes[offset+padding+8*(1+i)+6], self.bytes[offset+padding+8*(1+i)+7], self.bytes[offset+padding+8*(1+i)+8]];
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pairs_vec.push((i32::from_be_bytes(match_bytes), i32::from_be_bytes(offset_bytes)));
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}
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(Instruction::LookupSwitch(default, pairs_vec.into()), 1 + padding + 4 + 4 + npairs as usize * 8)
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}
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0xAC => (Instruction::ReturnInt(), 1),
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0xB0 => (Instruction::ReturnReference(), 1),
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0xB1 => (Instruction::ReturnVoid(), 1),
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0xB2 => (Instruction::GetStatic((self.bytes[offset+1] as u16) << 8 | self.bytes[offset+2] as u16), 3),
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@ -202,115 +227,120 @@ impl Debug for Bytecode {
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#[derive(Debug)]
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#[repr(u8)]
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pub enum Instruction {
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NoOperation() = 0x00, // No-Operation
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PushNull() = 0x01, // ..., arrayref, index, value
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PushConstIntM1() = 0x02, // Push -1
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PushConstInt0() = 0x03, // Push 0
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PushConstInt1() = 0x04, // Push 1
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PushConstInt2() = 0x05, // Push 2
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PushConstInt3() = 0x06, // Push 3
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PushConstInt4() = 0x07, // Push 4
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PushConstInt5() = 0x08, // Push 5
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PushConstFloat0() = 0x0B, // Push 0.0f
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PushConstFloat1() = 0x0C, // Push 1.0f
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PushConstFloat2() = 0x0D, // Push 2.0f
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PushConstDouble0() = 0x0E, // Push 0.0
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PushConstDouble1() = 0x0F, // Push 1.0
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NoOperation() = 0x00, // No-Operation
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PushNull() = 0x01, // ..., arrayref, index, value
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PushConstIntM1() = 0x02, // Push -1
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PushConstInt0() = 0x03, // Push 0
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PushConstInt1() = 0x04, // Push 1
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PushConstInt2() = 0x05, // Push 2
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PushConstInt3() = 0x06, // Push 3
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PushConstInt4() = 0x07, // Push 4
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PushConstInt5() = 0x08, // Push 5
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PushConstFloat0() = 0x0B, // Push 0.0f
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PushConstFloat1() = 0x0C, // Push 1.0f
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PushConstFloat2() = 0x0D, // Push 2.0f
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PushConstDouble0() = 0x0E, // Push 0.0
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PushConstDouble1() = 0x0F, // Push 1.0
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LoadByteImmediate(u8) = 0x10, // push immediate short
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LoadShortImmediate(u16) = 0x11, // push immediate short
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LoadConstant(u8) = 0x12, // Push from constant pool
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LoadCostantWide(u16) = 0x13, // Push from constant pool with wide index, don't load
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// double or long or whatever
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LoadConstant64(u16) = 0x14, // Push Long or Double from constant pool
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LoadLocalInt0() = 0x1A, // Load int from local variable
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LoadLocalInt1() = 0x1B, // Load int from local variable
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LoadLocalInt2() = 0x1C, // Load int from local variable
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LoadLocalInt3() = 0x1D, // Load int from local variable
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LoadByteImmediate(i8) = 0x10, // push immediate short
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LoadShortImmediate(i16) = 0x11, // push immediate short
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LoadConstant(u8) = 0x12, // Push from constant pool
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LoadCostantWide(u16) = 0x13, // Push from constant pool with wide index, don't load
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// double or long or whatever
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LoadConstant64(u16) = 0x14, // Push Long or Double from constant pool
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LoadLocalReference(u8) = 0x19, // Load reference from indexed local variable
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LoadLocalInt0() = 0x1A, // Load int from local variable
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LoadLocalInt1() = 0x1B, // Load int from local variable
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LoadLocalInt2() = 0x1C, // Load int from local variable
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LoadLocalInt3() = 0x1D, // Load int from local variable
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LoadLocalFloat0() = 0x22, // Load local double variable reference onto stack
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LoadLocalFloat1() = 0x23, // Load local double variable reference onto stack
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LoadLocalFloat2() = 0x24, // Load local double variable reference onto stack
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LoadLocalFloat3() = 0x25, // Load local double variable reference onto stack
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LoadLocalDouble0() = 0x26, // Load local double variable reference onto stack
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LoadLocalDouble1() = 0x27, // Load local double variable reference onto stack
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LoadLocalDouble2() = 0x28, // Load local double variable reference onto stack
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LoadLocalDouble3() = 0x29, // Load local double variable reference onto stack
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LoadLocalReference0() = 0x2A, // Load local reference variable reference onto stack
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LoadLocalReference1() = 0x2B, // Load local reference variable reference onto stack
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LoadLocalReference2() = 0x2C, // Load local reference variable reference onto stack
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LoadLocalReference3() = 0x2D, // Load local reference variable reference onto stack
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LoadLocalFloat0() = 0x22, // Load local double variable reference onto stack
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LoadLocalFloat1() = 0x23, // Load local double variable reference onto stack
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LoadLocalFloat2() = 0x24, // Load local double variable reference onto stack
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LoadLocalFloat3() = 0x25, // Load local double variable reference onto stack
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LoadLocalDouble0() = 0x26, // Load local double variable reference onto stack
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LoadLocalDouble1() = 0x27, // Load local double variable reference onto stack
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LoadLocalDouble2() = 0x28, // Load local double variable reference onto stack
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LoadLocalDouble3() = 0x29, // Load local double variable reference onto stack
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LoadLocalReference0() = 0x2A, // Load local reference variable reference onto stack
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LoadLocalReference1() = 0x2B, // Load local reference variable reference onto stack
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LoadLocalReference2() = 0x2C, // Load local reference variable reference onto stack
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LoadLocalReference3() = 0x2D, // Load local reference variable reference onto stack
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ArrayElement() = 0x32, // load element from array
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LoadFromBArray() = 0x33, // store into byte array
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StoreLocalInt(u8) = 0x36, // store into indexed local variable
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StoreLocalInt0() = 0x3B, // store int into local variable
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StoreLocalInt1() = 0x3C, // store int into local variable
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StoreLocalInt2() = 0x3D, // store int into local variable
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StoreLocalInt3() = 0x3E, // store int into local variable
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StoreReference0() = 0x4B, // store reference into local variable
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StoreReference1() = 0x4C, // store reference into local variable
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StoreReference2() = 0x4D, // store reference into local variable
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StoreReference3() = 0x4E, // store reference into local variable
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ArrayElement() = 0x32, // load element from array
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LoadFromBArray() = 0x33, // store into byte array
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StoreLocalInt(u8) = 0x36, // store into indexed local variable
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StoreLocalReference(u8) = 0x3A, // store into indexed local variable
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StoreLocalInt0() = 0x3B, // store int into local variable
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StoreLocalInt1() = 0x3C, // store int into local variable
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StoreLocalInt2() = 0x3D, // store int into local variable
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StoreLocalInt3() = 0x3E, // store int into local variable
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StoreLocalReference0() = 0x4B, // store reference into local variable
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StoreLocalReference1() = 0x4C, // store reference into local variable
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StoreLocalReference2() = 0x4D, // store reference into local variable
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StoreLocalReference3() = 0x4E, // store reference into local variable
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StoreIntoRArray() = 0x53, // store value into reference array
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StoreIntoBArray() = 0x54, // store value into byte or boolean array
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Pop() = 0x57, // Pop top stack value
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Duplicate() = 0x59, // duplicate top stack value
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StoreIntoRArray() = 0x53, // store value into reference array
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StoreIntoBArray() = 0x54, // store value into byte or boolean array
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StoreIntoCArray() = 0x55, // store value into char array
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Pop() = 0x57, // Pop top stack value
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Duplicate() = 0x59, // duplicate top stack value
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AddInt() = 0x60, // int addition
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SubtractInt() = 0x64, // int subtraction
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MultiplyInt() = 0x68, // int multiplication
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DivideInt() = 0x6C, // integer division, round toward zero and more rules
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DivideLong() = 0x6D, // long division
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AddInt() = 0x60, // int addition
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SubtractInt() = 0x64, // int subtraction
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MultiplyInt() = 0x68, // int multiplication
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DivideInt() = 0x6C, // integer division, round toward zero and more rules
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DivideLong() = 0x6D, // long division
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ShiftIntRight() = 0x7a, // shift int
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ArithmeticShiftIntRight() = 0x7A, // shift int
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LogicalShiftIntRight() = 0x7C, // shift int right with zero extension
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OrInt() = 0x80, // value, value => or
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IncrementLocalInt(u8, i8) = 0x84, // increment local variable by constant i8
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OrInt() = 0x80, // value, value => or
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IncrementLocalInt(u8, i8) = 0x84, // increment local variable by constant i8
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CompareFloatL() = 0x95, // compare float, push -1 if one is NaN
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CompareFloatG() = 0x96, // compare float, push 1 if one is NaN
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BranchZero(i16) = 0x99, // branch if value == 0
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BranchNonZero(i16) = 0x9A, // branch if value != 0
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BranchNegative(i16) = 0x9B, // branch if value < 0
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BranchNonNegative(i16) = 0x9C, // branch if value <= 0
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BranchPositive(i16) = 0x9D, // branch if value > 0
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BranchNonPositive(i16) = 0x9E, // branch if value >= 0
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CompareFloatL() = 0x95, // compare float, push -1 if one is NaN
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CompareFloatG() = 0x96, // compare float, push 1 if one is NaN
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BranchZero(i16) = 0x99, // branch if value == 0
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BranchNonZero(i16) = 0x9A, // branch if value != 0
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BranchNegative(i16) = 0x9B, // branch if value < 0
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BranchNonNegative(i16) = 0x9C, // branch if value <= 0
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BranchPositive(i16) = 0x9D, // branch if value > 0
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BranchNonPositive(i16) = 0x9E, // branch if value >= 0
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BranchIntEquality(i16) = 0x9F,
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BranchIntInequality(i16) = 0xA0,
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BranchIntLessThan(i16) = 0xA1,
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BranchIntGreaterEquals(i16) = 0xA2,
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BranchIntGreaterThan(i16) = 0xA3,
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BranchIntLessEquals(i16) = 0xA4,
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BranchReferenceEquality(i16) = 0xA5,
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BranchReferenceInequality(i16) = 0xA6,
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BranchIntEquality(i16) = 0x9F,
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BranchIntInequality(i16) = 0xA0,
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BranchIntLessThan(i16) = 0xA1,
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BranchIntGreaterEquals(i16) = 0xA2,
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BranchIntGreaterThan(i16) = 0xA3,
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BranchIntLessEquals(i16) = 0xA4,
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BranchReferenceEquality(i16) = 0xA5,
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BranchReferenceInequality(i16) = 0xA6,
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BranchAlways(i16) = 0xA7, // branch if true
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ReturnInt() = 0xAC, // return integer from function
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BranchAlways(i16) = 0xA7, // branch if true
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LookupSwitch(i32, Box<[(i32, i32)]>) = 0xAB, // offset based on switch value
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ReturnInt() = 0xAC, // return integer from function
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ReturnReference() = 0xB0, // return top-ref from current function
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ReturnVoid() = 0xB1, // return void from function
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GetStatic(u16) = 0xB2, // get static field from class
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PutStatic(u16) = 0xB3, // set static field on class
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GetField(u16) = 0xB4, // get field from class
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PutField(u16) = 0xB5, // set field to a value
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InvokeVirtual(u16) = 0xB6, // invoke function on a class
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InvokeSpecial(u16) = 0xB7, // invoke instance method
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InvokeStatic(u16) = 0xB8, // invoke static function
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InvokeDynamic(u16, u16) = 0xBA, // invoke dynamic function
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NewObject(u16) = 0xBB, // Create a new object from a constant-pool class reference
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NewPrimitiveArray(u8) = 0xBC, // make a primitive array
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NewArray(u16) = 0xBD, // Create a new array from a constant-pool component class reference
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ArrayLength() = 0xBE, // Get length from array reference
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ReturnReference() = 0xB0, // return top-ref from current function
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ReturnVoid() = 0xB1, // return void from function
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GetStatic(u16) = 0xB2, // get static field from class
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PutStatic(u16) = 0xB3, // set static field on class
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GetField(u16) = 0xB4, // get field from class
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PutField(u16) = 0xB5, // set field to a value
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InvokeVirtual(u16) = 0xB6, // invoke function on a class
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InvokeSpecial(u16) = 0xB7, // invoke instance method
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InvokeStatic(u16) = 0xB8, // invoke static function
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InvokeDynamic(u16, u16) = 0xBA, // invoke dynamic function
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NewObject(u16) = 0xBB, // Create a new object from a constant-pool class reference
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NewPrimitiveArray(u8) = 0xBC, // make a primitive array
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NewArray(u16) = 0xBD, // Create a new array from a constant-pool component class reference
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ArrayLength() = 0xBE, // Get length from array reference
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CheckCast(u16) = 0xC0, // throw exception on fail
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InstanceOf(u16) = 0xC1, // push integer result for success
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EnterMonitor() = 0xC2, // enter the synchronization monitor of an object
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ExitMonitor() = 0xC3, // exit the synchronization monitor of an object
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BranchNull(i16) = 0xC6, // branch if Null
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BranchNonNull(i16) = 0xC7, // branch if Null
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CheckCast(u16) = 0xC0, // throw exception on fail
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InstanceOf(u16) = 0xC1, // push integer result for success
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EnterMonitor() = 0xC2, // enter the synchronization monitor of an object
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ExitMonitor() = 0xC3, // exit the synchronization monitor of an object
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BranchNull(i16) = 0xC6, // branch if Null
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BranchNonNull(i16) = 0xC7, // branch if Null
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Unknown(u8),
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}
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@ -156,10 +156,12 @@ impl ClassStore {
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};
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let compatible_count = CompatibleTypesIterator::new(my_type_index, self)
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.filter(|type_name| *type_name == other_type_name)
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.filter(|type_name|
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*type_name == other_type_name
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)
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.count();
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compatible_count == 0
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compatible_count != 0
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}
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pub fn have_class(&self, classname: &String) -> bool {
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@ -79,14 +79,14 @@ impl HeapArea {
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let byte_array_ref = self.make_primitive_byte_array(utf16_bytes.len(), class_store);
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for (index, byte) in utf16_bytes.iter().enumerate() {
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self.object_area.set_array_element(byte_array_ref, index, FieldValue::Byte(*byte));
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self.object_area.set_array_element(byte_array_ref, index, FieldValue::Byte(i8::from_ne_bytes([*byte])));
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}
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let string_class_index = class_store.class_idx_from_name(&String::from("java/lang/String")).unwrap();
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let string_ref = self.make_object(class_store, string_class_index);
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self.object_area.set_object_field(string_ref, "value", FieldValue::Reference(byte_array_ref), string_class_index, class_store).unwrap();
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const UTF16_CODER: u8 = 1; // TODO: I don't like this
|
||||
const UTF16_CODER: i8 = 1; // TODO: I don't like this
|
||||
self.object_area.set_object_field(string_ref, "coder", FieldValue::Byte(UTF16_CODER), string_class_index, class_store).unwrap();
|
||||
|
||||
string_ref
|
||||
|
|
@ -104,6 +104,12 @@ impl HeapArea {
|
|||
pub struct ObjectReference(u32);
|
||||
|
||||
|
||||
impl Into<FieldValue> for ObjectReference {
|
||||
fn into(self) -> FieldValue {
|
||||
FieldValue::Reference(self)
|
||||
}
|
||||
}
|
||||
|
||||
impl ObjectReference {
|
||||
pub const NULL: ObjectReference = ObjectReference(0);
|
||||
}
|
||||
|
|
@ -125,7 +131,7 @@ impl ObjectArea {
|
|||
fn fill_byte_cache(&mut self, class_store: &ClassStore) -> usize {
|
||||
let byte_class_index = class_store.class_idx_from_name(&String::from("java/lang/Byte")).unwrap();
|
||||
let mut total_memory_usage = 0;
|
||||
for byte in 0..=u8::MAX {
|
||||
for byte in i8::MIN..=i8::MAX {
|
||||
let (byte_object_ref, object_memory) = self.make(class_store, byte_class_index);
|
||||
self.set_object_field(byte_object_ref, "value", FieldValue::Byte(byte), byte_class_index, class_store).unwrap();
|
||||
|
||||
|
|
@ -154,7 +160,7 @@ impl ObjectArea {
|
|||
|
||||
let array_object = ByteArray {
|
||||
class_ref: array_class_ref,
|
||||
content: vec![0_u8; capacity].into(),
|
||||
content: vec![0_i8; capacity].into(),
|
||||
};
|
||||
|
||||
let array_ref = self.store_entry(CompartmentEntry::ByteArray(array_object));
|
||||
|
|
@ -350,12 +356,17 @@ impl ObjectArea {
|
|||
let array_element = array.content.get_mut(index).unwrap();
|
||||
|
||||
*array_element = match element { FieldValue::Reference(r) => r, _ => unreachable!() } ;
|
||||
},
|
||||
}
|
||||
CompartmentEntry::ByteArray(array) => {
|
||||
let array_element = array.content.get_mut(index).unwrap();
|
||||
|
||||
*array_element = match element { FieldValue::Byte(b) => b, _ => unreachable!() } ;
|
||||
},
|
||||
}
|
||||
CompartmentEntry::CharArray(array) => {
|
||||
let array_element = array.content.get_mut(index).unwrap();
|
||||
|
||||
*array_element = match element { FieldValue::Char(c) => c, _ => unreachable!() } ;
|
||||
}
|
||||
_ => unreachable!(),
|
||||
};
|
||||
|
||||
|
|
@ -508,7 +519,7 @@ pub struct CharArray {
|
|||
#[derive(Debug)]
|
||||
pub struct ByteArray {
|
||||
class_ref: ObjectReference,
|
||||
content: Box<[u8]>,
|
||||
content: Box<[i8]>,
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
|
|
@ -639,7 +650,7 @@ pub struct ObjectField {
|
|||
#[derive(Debug, Clone, Copy)]
|
||||
pub enum FieldValue {
|
||||
Boolean(bool),
|
||||
Byte(u8),
|
||||
Byte(i8),
|
||||
Char(u16),
|
||||
Short(i16),
|
||||
Int(i32),
|
||||
|
|
@ -674,7 +685,7 @@ impl FieldValue {
|
|||
AbstractTypeKind::Long() => Self::Long(0),
|
||||
AbstractTypeKind::Classname(_) => Self::Reference(ObjectReference::NULL),
|
||||
AbstractTypeKind::Short() => Self::Short(0),
|
||||
AbstractTypeKind::Boolean() => Self::Boolean(true),
|
||||
AbstractTypeKind::Boolean() => Self::Boolean(false),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
143
src/jvm.rs
143
src/jvm.rs
|
|
@ -553,7 +553,7 @@ impl JVM {
|
|||
AbstractTypeKind::Byte() => {
|
||||
let int_entry = class_file.pool_int_entry(constant_value_info.constant_value_index)?;
|
||||
|
||||
FieldValue::Byte(int_entry.value as u8)
|
||||
FieldValue::Byte(int_entry.value as i8)
|
||||
},
|
||||
AbstractTypeKind::Char() => {
|
||||
let int_entry = class_file.pool_int_entry(constant_value_info.constant_value_index)?;
|
||||
|
|
@ -678,6 +678,14 @@ impl JVM {
|
|||
wrap_stackframe_error(class, method, frame.operand_stack.push(StackValue::Int(value_0 + value_1)))?;
|
||||
}
|
||||
|
||||
Instruction::ArithmeticShiftIntRight() => {
|
||||
let shift = wrap_stackframe_error(class, method, frame.operand_stack.pop_int(0))? as u8 & 0b00011111;
|
||||
let int = wrap_stackframe_error(class, method, frame.operand_stack.pop_int(0))?;
|
||||
|
||||
// rust does arithmetic shift on singed values
|
||||
wrap_stackframe_error(class, method, frame.operand_stack.push(StackValue::Int(int >> shift)))?;
|
||||
},
|
||||
|
||||
Instruction::ArrayLength() => {
|
||||
let array_reference = wrap_stackframe_error(class, method, frame.operand_stack.pop_reference(0))?;
|
||||
|
||||
|
|
@ -740,6 +748,16 @@ impl JVM {
|
|||
}
|
||||
}
|
||||
|
||||
Instruction::BranchIntLessThan(branch_offset) => {
|
||||
let value_2 = wrap_stackframe_error(class, method, frame.operand_stack.pop_int(0))?;
|
||||
let value_1 = wrap_stackframe_error(class, method, frame.operand_stack.pop_int(0))?;
|
||||
|
||||
if value_1 < value_2 {
|
||||
frame.instruction_pointer -= offset as u32;
|
||||
frame.instruction_pointer = if branch_offset < 0 { frame.instruction_pointer - branch_offset.abs() as u32} else { frame.instruction_pointer + branch_offset.abs() as u32};
|
||||
}
|
||||
}
|
||||
|
||||
Instruction::BranchNonNull(branch_offset) => {
|
||||
let test_value = wrap_stackframe_error(class, method, frame.operand_stack.pop_reference(0))?;
|
||||
|
||||
|
|
@ -785,10 +803,10 @@ impl JVM {
|
|||
}
|
||||
}
|
||||
|
||||
Instruction::BranchZero(branch_offset) => {
|
||||
Instruction::BranchPositive(branch_offset) => {
|
||||
let test_value = wrap_stackframe_error(class, method, frame.operand_stack.pop_int(0))?;
|
||||
|
||||
if test_value == 0 {
|
||||
if test_value > 0 {
|
||||
frame.instruction_pointer -= offset as u32;
|
||||
frame.instruction_pointer = if branch_offset < 0 { frame.instruction_pointer - branch_offset.abs() as u32} else { frame.instruction_pointer + branch_offset.abs() as u32};
|
||||
}
|
||||
|
|
@ -804,6 +822,15 @@ impl JVM {
|
|||
}
|
||||
}
|
||||
|
||||
Instruction::BranchZero(branch_offset) => {
|
||||
let test_value = wrap_stackframe_error(class, method, frame.operand_stack.pop_int(0))?;
|
||||
|
||||
if test_value == 0 {
|
||||
frame.instruction_pointer -= offset as u32;
|
||||
frame.instruction_pointer = if branch_offset < 0 { frame.instruction_pointer - branch_offset.abs() as u32} else { frame.instruction_pointer + branch_offset.abs() as u32};
|
||||
}
|
||||
}
|
||||
|
||||
Instruction::CheckCast(classref_index) => {
|
||||
// TODO: Class loading checks
|
||||
let class_name = class.gather_class(classref_index)?;
|
||||
|
|
@ -1110,10 +1137,7 @@ impl JVM {
|
|||
|
||||
// TODO: Throw error
|
||||
if ! self.class_store.are_types_compatible(&this_object_descriptor, &base_object_descriptor) {
|
||||
return Err(Error::RunTimeError(format!(
|
||||
"InvokeVirtual: Cannot call '{base_method_name}' from class '{base_class_name}' on instance from class '{}: Types are incompatible'",
|
||||
this_object_class_name
|
||||
)))
|
||||
return Err(Error::RunTimeError(format!("InvokeVirtual: Cannot call '{base_method_name}' from class '{base_class_name}' on instance from class '{this_object_class_name}: Types are incompatible'")))
|
||||
}
|
||||
|
||||
let (invoked_class_index, invoked_method_index, _invoked_method_info) = match ClassMethodIterator::new(this_object_class_index, &self.class_store)
|
||||
|
|
@ -1145,9 +1169,18 @@ impl JVM {
|
|||
|
||||
Instruction::LoadByteImmediate(byte) => {
|
||||
// sign extend into int
|
||||
let i8_int = i8::from_be_bytes([byte]);
|
||||
|
||||
let frame_result = frame.operand_stack.push(StackValue::Int(i8_int as i32));
|
||||
let frame_result = frame.operand_stack.push(StackValue::Int(byte as i32));
|
||||
match frame_result {
|
||||
Ok(_) => (),
|
||||
Err(err) => return Err(Error::StackFrameError(err, format!("in '{}', in class '{}'", method.name, class.get_classname().unwrap()))),
|
||||
}
|
||||
}
|
||||
|
||||
Instruction::LoadShortImmediate(short) => {
|
||||
// sign extend into int
|
||||
|
||||
let frame_result = frame.operand_stack.push(StackValue::Int(short as i32));
|
||||
match frame_result {
|
||||
Ok(_) => (),
|
||||
Err(err) => return Err(Error::StackFrameError(err, format!("in '{}', in class '{}'", method.name, class.get_classname().unwrap()))),
|
||||
|
|
@ -1263,13 +1296,19 @@ impl JVM {
|
|||
let string_obj_ref = self.heap_area.make_handmade_string(string_constant, &self.class_store);
|
||||
|
||||
wrap_stackframe_error(class, method, frame.operand_stack.push(StackValue::Reference(string_obj_ref)))?;
|
||||
},
|
||||
}
|
||||
|
||||
ConstantPoolInfo::Integer(int_data) => {
|
||||
let int_value = int_data.value;
|
||||
|
||||
wrap_stackframe_error(class, method, frame.operand_stack.push(StackValue::Int(int_value)))?;
|
||||
}
|
||||
_ => {
|
||||
println!("{:?}", class.pool_entry(wide_index).unwrap());
|
||||
todo!()
|
||||
}
|
||||
}
|
||||
},
|
||||
}
|
||||
|
||||
Instruction::LoadLocalFloat0() => {
|
||||
load_local_float(class, method, frame, 0)?;
|
||||
|
|
@ -1297,6 +1336,9 @@ impl JVM {
|
|||
load_local_int(class, method, frame, 3)?;
|
||||
}
|
||||
|
||||
Instruction::LoadLocalReference(index) => {
|
||||
load_local_reference(class, method, frame, index as usize)?;
|
||||
}
|
||||
Instruction::LoadLocalReference0() => {
|
||||
load_local_reference(class, method, frame, 0)?;
|
||||
}
|
||||
|
|
@ -1310,6 +1352,27 @@ impl JVM {
|
|||
load_local_reference(class, method, frame, 3)?;
|
||||
}
|
||||
|
||||
Instruction::LogicalShiftIntRight() => {
|
||||
let shift = wrap_stackframe_error(class, method, frame.operand_stack.pop_int(0))? as u8 & 0b00011111;
|
||||
let int = wrap_stackframe_error(class, method, frame.operand_stack.pop_int(0))?;
|
||||
let uint = u32::from_ne_bytes(int.to_ne_bytes());
|
||||
let u_result = uint >> shift;
|
||||
let i_result = i32::from_ne_bytes(u_result.to_ne_bytes());
|
||||
|
||||
wrap_stackframe_error(class, method, frame.operand_stack.push(StackValue::Int(i_result)))?;
|
||||
}
|
||||
|
||||
Instruction::LookupSwitch(default_offset, pairs) => {
|
||||
let key = wrap_stackframe_error(class, method, frame.operand_stack.pop_int(0))?;
|
||||
let jump_offset = match pairs.binary_search_by(|(match_key, _offset)| match_key.cmp(&key)) {
|
||||
Ok(offset) => pairs[offset].1,
|
||||
Err(_) => default_offset,
|
||||
};
|
||||
|
||||
frame.instruction_pointer -= offset as u32;
|
||||
frame.instruction_pointer = if jump_offset < 0 { frame.instruction_pointer - jump_offset.abs() as u32} else { frame.instruction_pointer + jump_offset.abs() as u32};
|
||||
}
|
||||
|
||||
Instruction::MultiplyInt() => {
|
||||
let factor_1 = wrap_stackframe_error(class, method, frame.operand_stack.pop_int(0))?;
|
||||
let factor_2 = wrap_stackframe_error(class, method, frame.operand_stack.pop_int(0))?;
|
||||
|
|
@ -1516,20 +1579,26 @@ impl JVM {
|
|||
let ref_value = wrap_stackframe_error(class, method, frame.operand_stack.pop_reference(0))?;
|
||||
|
||||
if ref_value != ObjectReference::NULL {
|
||||
let value_native_name = self.heap_area.object_area.get_reference_native_class_name(ref_value, &self.class_store);
|
||||
let value_native_name = self.heap_area.object_area.get_reference_native_class_name(ref_value, &self.class_store);
|
||||
let parsed_native_name = AbstractTypeDescription::parse_first(value_native_name).unwrap().1;
|
||||
|
||||
if ! self.class_store.are_types_compatible(&matched_field.descriptor, &parsed_native_name) {
|
||||
if ! self.class_store.are_types_compatible(&parsed_native_name, &matched_field.descriptor) {
|
||||
return Err(Error::RunTimeError(format!("PutStatic: Trying to set a value with type '{parsed_native_name:?}' on a field with type '{:?}'", matched_field.descriptor)));
|
||||
}
|
||||
}
|
||||
|
||||
FieldValue::Reference(ref_value)
|
||||
}
|
||||
|
||||
(1..=255, _) => {
|
||||
let ref_value = wrap_stackframe_error(class, method, frame.operand_stack.pop_reference(0))?;
|
||||
FieldValue::Reference(ref_value)
|
||||
}
|
||||
|
||||
_ => {
|
||||
println!("{:?}", matched_field);
|
||||
todo!()
|
||||
},
|
||||
}
|
||||
};
|
||||
|
||||
self.heap_area.static_area.set(target_class_name, target_field_name, set_value)?;
|
||||
|
|
@ -1568,13 +1637,6 @@ impl JVM {
|
|||
return Ok(JVMCallbackOperation::PopFrame());
|
||||
},
|
||||
|
||||
Instruction::ShiftIntRight() => {
|
||||
let shift = wrap_stackframe_error(class, method, frame.operand_stack.pop_int(0))? as u8 & 0b00011111;
|
||||
let int = wrap_stackframe_error(class, method, frame.operand_stack.pop_int(0))?;
|
||||
|
||||
wrap_stackframe_error(class, method, frame.operand_stack.push(StackValue::Int(int >> shift)))?;
|
||||
},
|
||||
|
||||
Instruction::StoreIntoBArray() => {
|
||||
let value = wrap_stackframe_error(class, method, frame.operand_stack.pop_int(0))?;
|
||||
let index = wrap_stackframe_error(class, method, frame.operand_stack.pop_int(0))?;
|
||||
|
|
@ -1582,7 +1644,7 @@ impl JVM {
|
|||
|
||||
match self.heap_area.object_area.get_entry(array_ref) {
|
||||
CompartmentEntry::ByteArray(_) => {
|
||||
let byte_value = value.to_ne_bytes()[3];
|
||||
let byte_value = value as i8;
|
||||
|
||||
self.heap_area.object_area.set_array_element(array_ref, index as usize, FieldValue::Byte(byte_value));
|
||||
}
|
||||
|
|
@ -1590,6 +1652,22 @@ impl JVM {
|
|||
}
|
||||
}
|
||||
|
||||
Instruction::StoreIntoCArray() => {
|
||||
let value = wrap_stackframe_error(class, method, frame.operand_stack.pop_int(0))?;
|
||||
let index = wrap_stackframe_error(class, method, frame.operand_stack.pop_int(0))?;
|
||||
let array_ref = wrap_stackframe_error(class, method, frame.operand_stack.pop_reference(0))?;
|
||||
|
||||
match self.heap_area.object_area.get_entry(array_ref) {
|
||||
CompartmentEntry::CharArray(_) => {
|
||||
let int_bytes = value.to_ne_bytes();
|
||||
let char_value = u16::from_ne_bytes([int_bytes[2], int_bytes[3]]);
|
||||
|
||||
self.heap_area.object_area.set_array_element(array_ref, index as usize, FieldValue::Char(char_value));
|
||||
}
|
||||
_ => todo!(), // TODO: Handle as error
|
||||
}
|
||||
}
|
||||
|
||||
Instruction::StoreIntoRArray() => {
|
||||
let value = wrap_stackframe_error(class, method, frame.operand_stack.pop_reference(0))?;
|
||||
let index = wrap_stackframe_error(class, method, frame.operand_stack.pop_int(0))?;
|
||||
|
|
@ -1633,26 +1711,31 @@ impl JVM {
|
|||
wrap_stackframe_error(class, method, frame.store_local(3, StackValue::Int(int)))?;
|
||||
}
|
||||
|
||||
Instruction::StoreReference0() => {
|
||||
Instruction::StoreLocalReference(index) => {
|
||||
let reference = wrap_stackframe_error(class, method, frame.operand_stack.pop_reference(0))?;
|
||||
|
||||
wrap_stackframe_error(class, method, frame.store_local(index as u16, StackValue::Reference(reference)))?;
|
||||
}
|
||||
Instruction::StoreLocalReference0() => {
|
||||
let reference = wrap_stackframe_error(class, method, frame.operand_stack.pop_reference(0))?;
|
||||
|
||||
wrap_stackframe_error(class, method, frame.store_local(0, StackValue::Reference(reference)))?;
|
||||
},
|
||||
Instruction::StoreReference1() => {
|
||||
}
|
||||
Instruction::StoreLocalReference1() => {
|
||||
let reference = wrap_stackframe_error(class, method, frame.operand_stack.pop_reference(0))?;
|
||||
|
||||
wrap_stackframe_error(class, method, frame.store_local(1, StackValue::Reference(reference)))?;
|
||||
},
|
||||
Instruction::StoreReference2() => {
|
||||
}
|
||||
Instruction::StoreLocalReference2() => {
|
||||
let reference = wrap_stackframe_error(class, method, frame.operand_stack.pop_reference(0))?;
|
||||
|
||||
wrap_stackframe_error(class, method, frame.store_local(2, StackValue::Reference(reference)))?;
|
||||
},
|
||||
Instruction::StoreReference3() => {
|
||||
}
|
||||
Instruction::StoreLocalReference3() => {
|
||||
let reference = wrap_stackframe_error(class, method, frame.operand_stack.pop_reference(0))?;
|
||||
|
||||
wrap_stackframe_error(class, method, frame.store_local(3, StackValue::Reference(reference)))?;
|
||||
},
|
||||
}
|
||||
|
||||
_ => {
|
||||
return Err(Error::RunTimeError(format!("Opcode not implemented yet: {:?}", instruction)))
|
||||
|
|
|
|||
|
|
@ -290,6 +290,14 @@ impl JavaLangClass {
|
|||
}
|
||||
}
|
||||
|
||||
struct JavaLangStringUTF16 {}
|
||||
|
||||
impl JavaLangStringUTF16 {
|
||||
pub fn is_big_endian(_jvm: &mut JVM) -> Result<JVMCallbackOperation, Error> {
|
||||
Ok(JVMCallbackOperation::ReturnFrame(StackValue::Int(if cfg!(target_endian = "big") {1} else {0})))
|
||||
}
|
||||
}
|
||||
|
||||
struct JdkInternalMiscUnsafe {}
|
||||
|
||||
impl JdkInternalMiscUnsafe {
|
||||
|
|
@ -357,8 +365,19 @@ impl JdkInternalUtilSystemPropsRaw {
|
|||
Ok(JVMCallbackOperation::ReturnFrame(StackValue::Reference(array_reference)))
|
||||
}
|
||||
|
||||
// command-line configured properties, should return at least java.home
|
||||
pub fn vm_properties(jvm: &mut JVM) -> Result<JVMCallbackOperation, Error> {
|
||||
let array_reference = jvm.heap_area.make_empty_array(&jvm.class_store, AbstractTypeDescription { array_level: 0, kind: AbstractTypeKind::Classname("java/lang/String".into()) }, 2);
|
||||
let array_length = 4;
|
||||
let array_reference = jvm.heap_area.make_empty_array(&jvm.class_store, AbstractTypeDescription { array_level: 0, kind: AbstractTypeKind::Classname("java/lang/String".into()) }, array_length);
|
||||
|
||||
{
|
||||
// TODO: Actual java home path
|
||||
let java_home_key_reference = jvm.heap_area.make_handmade_string(&String::from("java.home"), &jvm.class_store);
|
||||
let java_home_value_reference = jvm.heap_area.make_handmade_string(&String::from("./"), &jvm.class_store);
|
||||
|
||||
jvm.heap_area.object_area.set_array_element(array_reference, 0, java_home_key_reference.into());
|
||||
jvm.heap_area.object_area.set_array_element(array_reference, 1, java_home_value_reference.into());
|
||||
}
|
||||
|
||||
Ok(JVMCallbackOperation::ReturnFrame(StackValue::Reference(array_reference)))
|
||||
}
|
||||
|
|
@ -896,6 +915,20 @@ pub fn function_for(class_name: &str, m: &crate::classfile::MethodInfo) -> Resul
|
|||
Ok(todo_call)
|
||||
}
|
||||
|
||||
("java/lang/StringUTF16", "isBigEndian") => {
|
||||
// until JDK 23
|
||||
let expected_descriptor = MethodDescriptor {
|
||||
argument_types: Box::new([]),
|
||||
return_type: AbstractTypeDescription { array_level: 0, kind: AbstractTypeKind::Boolean() },
|
||||
};
|
||||
|
||||
if m.descriptor != expected_descriptor {
|
||||
return Err(Error::RunTimeError(format!("Native descriptor mismatch for method '{class_name}.{method_name}': found '{}' but expected '{}'", m.descriptor.source_string(), expected_descriptor.source_string())));
|
||||
}
|
||||
|
||||
Ok(JavaLangStringUTF16::is_big_endian)
|
||||
}
|
||||
|
||||
("java/lang/Object", "clone") => {
|
||||
let expected_descriptor = MethodDescriptor {
|
||||
argument_types: Box::new([]),
|
||||
|
|
|
|||
Loading…
Reference in a new issue